ENHANCEMENT OF A SUNSPOT LIGHT WALL WITH EXTERNAL DISTURBANCES
文献类型：期刊论文
| 作者 | Yang, Shuhong1,2 ; Zhang, Jun1,2; Erdelyi, Robert3; Zhang,Jun; Yang,Shuhong
|
| 刊名 | Astrophysical Journal Letters
 |
| 出版日期 | 2016-12-20 |
| 卷号 | 833期号:2 |
| 关键词 | Sun: chromosphere Sun: flares Sun: photosphere Sun: UV radiation |
| 英文摘要 | Based on the Interface Region Imaging Spectrograph observations, we study the response of a solar sunspot light wall to external disturbances. A flare occurrence near the light wall caused material to erupt from the lower solar atmosphere into the corona. Some material falls back to the solar surface and hits the light bridge (i.e., the base of the light wall), then sudden brightenings appear at the wall base followed by the rise of wall top, leading to an increase of the wall height. Once the brightness of the wall base fades, the height of the light wall begins to decrease. Five hours later, another nearby flare takes place, and a bright channel is formed that extends from the flare toward the light bridge. Although no obvious material flow along the bright channel is found, some ejected material is conjectured to reach the light bridge. Subsequently, the wall base brightens and the wall height begins to increase again. Once more, when the brightness of the wall base decays, the wall top fluctuates to lower heights. We suggest, based on the observed cases, that the interaction of falling material and ejected flare material with the light wall results in the brightenings of wall base and causes the height of the light wall to increase. Our results reveal that the light wall can be not only powered by the linkage of p-mode from below the photosphere, but may also be enhanced by external disturbances, such as falling material. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | REGION-IMAGING-SPECTROGRAPH ; DYNAMICS-OBSERVATORY SDO ; TRANSITION REGION ; PLASMA EJECTIONS ; BRIDGE ; IMPACTS ; SUN |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000393433000001 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/8270]  |
| 专题 | 国家天文台_太阳物理研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China 2.Univ Chinese Acad Sci, Coll Astron & Space Sci, Beijing 100049, Peoples R China 3.Univ Sheffield, Sch Math & Stat, Solar Phys & Space Plasma Res Ctr, Hicks Bldg,Hounsfield Rd, Sheffield S3 7RH, S Yorkshire, England |
| 推荐引用方式 GB/T 7714 | Yang, Shuhong,Zhang, Jun,Erdelyi, Robert,et al. ENHANCEMENT OF A SUNSPOT LIGHT WALL WITH EXTERNAL DISTURBANCES[J]. Astrophysical Journal Letters,2016,833(2). |
| APA | Yang, Shuhong,Zhang, Jun,Erdelyi, Robert,Zhang,Jun,&Yang,Shuhong.(2016).ENHANCEMENT OF A SUNSPOT LIGHT WALL WITH EXTERNAL DISTURBANCES.Astrophysical Journal Letters,833(2). |
| MLA | Yang, Shuhong,et al."ENHANCEMENT OF A SUNSPOT LIGHT WALL WITH EXTERNAL DISTURBANCES".Astrophysical Journal Letters 833.2(2016). |
入库方式： OAI收割
来源：国家天文台
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